نتایج جستجو برای: enamel crack

تعداد نتایج: 34861  

Azadeh Raeisi-Sarkhooni, Azam Valian, Elham Moravej-Salehi, Shila Emamieh,

Background and Aim: High consumption of carbonated diet soda is the most common etiologic factor for dental erosion. The purpose of this study was to evaluate the microhardness of the enamel surface eroded by cola after treatment with Remin Pro and neutral sodium fluoride. Materials and Methods: This in vitro experimental study was performed on 20 extracted premolars with no corrosion, abras...

Ahmad Najafi, Hadis Khosravi, Shila Emamieh,

Background and Aim: Carbonated diet soda is the most common etiologic factor for dental erosion, and fluoride products have been proposed as an option for the preven-tion of that problem. This study evaluated the effect of Remin Pro and neutral sodium fluoride on the prevention of dental enamel erosion using profilometry. Materials and Methods: This study was conducted using an experimental-...

2014
Takako Yoshikawa Junji Tagami

Purpose: This study aimed to evaluate the effects of light-curing method on the marginal seal and resin composite adaptation to the cavity wall, and the formation of enamel cracks around resin composite restorations. Materials and Methods: Cylindrical cavities were prepared on the buccal or lingual cervical region of human molars. The teeth were restored with Clearfil Liner Bond 2 V and filled ...

Journal: :Biomaterials 2010
Siang Fung Ang Emely L Bortel Michael V Swain Arndt Klocke Gerold A Schneider

The microstructure of enamel like most biological tissues has a hierarchical structure which determines their mechanical behavior. However, current studies of the mechanical behavior of enamel lack a systematic investigation of these hierarchical length scales. In this study, we performed macroscopic uni-axial compression tests and the spherical indentation with different indenter radii to prob...

2017
Dong-Min Kim Hwan-Chul Yu Hye-In Yang Yu-Jin Cho Kwang-Myong Lee Chan-Moon Chung

A microcapsule-type self-healing protective coating with secondary crack preventing capability has been developed using a silanol-terminated polydimethylsiloxane (STP)/dibutyltin dilaurate (DD) healing agent. STP undergoes condensation reaction in the presence of DD to give a viscoelastic substance. STP- and DD-containing microcapsules were prepared by in-situ polymerization and interfacial pol...

Journal: :Proceedings of SPIE--the International Society for Optical Engineering 2014
William A Fried Jacob C Simon Seth Lucas Kenneth H Chan Cynthia L Darling Michal Staninec Daniel Fried

Dental enamel is highly transparent at near-IR wavelengths and several studies have shown that these wavelengths are well suited for optical transillumination for the detection and imaging of tooth decay. We hypothesize that these wavelengths are also well suited for imaging cracks in teeth. Extracted teeth with suspected cracks were imaged at several wavelengths in the near-IR from 1300-1700-n...

Journal: :Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] 2003
David J Clark Cherilyn G Sheets Jacinthe M Paquette

UNLABELLED The diagnoses of cracked teeth and incomplete coronal fracture have historically been symptom based. The dental operating microscope at 16x magnification can fundamentally change a clinician's ability to diagnose such conditions. Clinicians have been observing cracks under extreme magnification for nearly a decade. Patterns have become clear that can lead to appropriate treatment pri...

2015
Carolina Loch Jules A. Kieser R. Ewan Fordyce

The transition from terrestrial ancestry to a fully pelagic life profoundly altered the body systems of cetaceans, with extreme morphological changes in the skull and feeding apparatus. The Oligocene Epoch was a crucial time in the evolution of cetaceans when the ancestors of modern whales and dolphins (Neoceti) underwent major diversification, but details of dental structure and evolution are ...

1999
MARY CAROL MAAS ELIZABETH R. DUMONT

Enamel is the strongest tissue in the body. It is not only hard (resistant to permanent surface deformation), but tough (resistant to crack propagation and brittle fracture). Its durability means that enamel can potentially be preserved, unaltered, for literally millions of years. Moreover, because it is not remodeled during life, enamel is unique among mammalian tissues in that it preserves a ...

Journal: :Biomaterials 2013
D Do S Orrego H Majd H Ryou M M Mutluay Hockin H K Xu D Arola

Composite restorations accumulate more biofilm than other dental materials. This increases the likelihood for the hard tissues supporting a restoration (i.e. dentin and enamel) to be exposed to acidic conditions beyond that resulting from dietary variations. In this investigation the fatigue strength and fatigue crack growth resistance of human coronal dentin were characterized within a lactic ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید